Added: 5 years ago
From: qingxiang88
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  • Nice potato.

  • The caesium is heated by the reaction and when it reaches 671 degrees C, it boils, and explodes into caesium gas.

  • Unfortunately francium is also radioactive, which is unhelpful to say the least. :P

  • francium is one of the rarest elements on the planet. You're lucky if you can detect an atom of it in any sample, much less concentrate it.

  • @MrJimmy9800 Incorrect.

    There are millions if not much more Francium atoms on he planet.

    For example 50cm of Uraninite will approximately contain 100,000 atoms of Francium.

  • @36hunters

    Do you have any idea how little a million atoms is?

    Even 100 million Francium atoms would only have a mass of 0.000000000000037 g

    Only around 25 g exists on the entire earth at any time and the most amount ever produced in the laboratory was 600,000 atoms.

    I would however love to see all the francium on earth dropped into a swimming pool.

  • And so the caesium ceases to exist...

  • BAD AZZ!! LOL I'M GOING TO TRY THAT ONE DAY

  • getting Francium ist quite hard: the longest living Isotopes have got a middle life time of less than half an hour.

  • That was approx. 1 gram of Francium, The video can be seen in the suggested where the guy tests out a bunch of alkali metals.

    "Alkali metals in water - Accurate!"

  • @Visurit its cesium, not francium.

    you'll notice if its francium

  • this is not Cesium!

  • well that helped

  • How much cesium was used?? It looked like 0.01mg

  • @rckli

    Are you basing that on braniac's video?

  • @Yazozo Why are you being a bitch ? btw im probably alot younger than you concidering im twelve , asshole !!

  • @kerrieluvsya youth is no excuse for being called an asshole by your own family and then posting on Jewtube about it!

  • @Testic00ls gee your a dick. leave the kid alone

  • we watched this in my science class at school and i just burst into laughter heehee i love fire and explosions my family calls me the arsenist

  • Also, BOOM!

  • why don't they let people buy Fransium for a youtube video?!?!?!? (It's lore reactive than CESIUM)

  • @MarioKartFan2132 Francium only exists in laboratory experiments and has a ridiculously short half-life.

  • All I see are colored rectangles.

  • Haha that's quite funny...

  • i'd say that was slightly reactive

  • if i had this stuff i'd pour it down my school's drain

  • @THISNAMEOWNS me too

  • if only they let us use caesium at school....

    that would be amazing

  • EPICCC

  • 2Csº + 2H2O --> 2Cs(OH) + H2

  • @thomashusak you can't use zero as a subscript

  • Can Someone Help Me With Homework? I Need To Figure Out Why It Does That And Explain Using The Periodic Talbe... And To Be Wuite Honest, I Have No Clue o.o

    It Took Me Five Minutes To Find The Clip!

  • the outer shell of the atom has only one electron, making it very unstable

  • @Babiebutt666

    This is your homework? And you don't know shit about the element? Goddamn what the hell is up with schools?

  • @hjjfffaa Yup, I Don't Know Anything. We're Starting A New Subject And He Just Said Find Out About It. I Dunno, It's School :L They're Lazy Asses. xD I Just Said It Explodes! :L

  • haha, his whistle at the end made me lol.

  • Glass is see thro I guess, but there are see thro compunds that are stronger than glass that could easily survive the impact but my guess is they are expensive

  • Yes, metal bowls are renowned for their see-through properties.

  • oh of course, remember that one Star Trek movie and transparent aluminum?? Scotty totally invented it for us!

  • you do know that dropping an alkali metal into water produces a hydroxide, which reacts with some metals?

  • FUCKING HELL!!!

  • Don't know why people keep insisting on using glass bowls for these demonstrations. Extra serving of shrapnel anyone?

  • well why not cut urself up and ruin a bowl? makes sense to me

  • Lol, hear the bloke whistle at the end

  • LOL its like lets do this professionally and slowly...*toss* and now its all over his face.

  • Francium is very radioactive, it is not the chemical reactions you have to protect it from, but the nuclear ones. A vacuum would not prevent its inevitable decay. In 22 minutes, half would be gone. The most ever gathered in one place at once is 10,000 atoms, hardly a good video. The critical mass would most likely be vary small. In brief, chunk of Francium=nuclear explosion , a vacuum would do nothing.

  • so at leas thte world isnt in danger from francium asteroids lmao. lets say, a 10 ton block of francium was somehow dropped into the ocean, in an argon astmosphere, then released to the water, how big would the explosion be you you think? 10 tons of solid francium.

  • I think the universe would cease to exist

  • lol massive supernova XD

  • The equivalant of chuck norris doing a falcon punch :D

  • thats FR not cesium

  • no its not you retard, FR would blow that thing to pieces and the camera too... there is only 30g of FR in the world at one point, and i doubt that someong would just throw it in water, also, it would need to be in an airtight container becuase it would react with the air

  • and your just making an assumption so your point is invalid. and also an airtight container would do nothing it would have to be in a vacuum

  • well... tfrancium is radioactive, no one would be able to find that much, and put it in water in under 20 minutes, i have seen the origional clip where the comentator says its fancium and by airtight, i ment a vacuum... sorry

  • You mean it'd have to be kept in Argon atmosphere conditions to prevent it reacting with Oxygen?

  • Francium is incredibly unstable so it can't exist in large amounts naturally. Isotopes of Francium can be synthesized but yes, in small amounts as well. This video is of cesium not francium. ....end....of fucking story.

  • lol ur an idiot xDDDD

  • LMAO

  • u copied this exact piece of anothe youtuber.

  • holy crap whre do you by it

  • in office depot

  • How much per gramme?

  • hahaha I love chemistry :)

  • lol!!!!!

  • wow, i wonder why they neveer made depth charges with that?

  • 4 seconds of epicness

  • It reacts with not just water but also the moisture in the air and also the moisture one your hands if you were to hold it

  • where u buy this sick shit. plz tell me, i damaged my ears wit fuckin dry ice bombs so i dont wanna do them again and this looks like a great substitute

  • Cesium is an expensive element...

  • thats ok, so how much for a gram and where could i find it

  • You can't buy it usually unless you are a laboratory. With good reason. It is also quite radioactive.

  • cesium is not radioactiv its just poisoness

    Francium (the one below it in the PT) is very very radioactuve

  • megafirerules casium it 1 above francium so it means that it is reactive!

  • hey will it stil explode in fresh water?

  • ugh, yeah

  • We found the substitute for an atomic bomb.

  • greg i think yer thinking of potassium for the purple flame, cesium indeed makes a blue flame(or flash if you will) in other words quantizes (releases) light mainly in the 460nm-480nm wavelengths when its energized

  • I don't know whether this is fake or not but I remember seeing it on Open University in about 1990/91. If its not Caesium its probably some kind of carbide.

  • u lived up to ur name and caught a noob!

  • Wow, you're a little close there.

  • i dont get though... how could anybody use caesium?

  • i dont know but francium is worse

  • i watched it lyk 30 tyms in a row XD so mint. these metals are amasing..... i forget if caesium is an alkali metal or nt. ether way. its gta hurt if it even just touches you.... calcium burns on water at abput 600 degrees cecious ouch :P

  • it is an alkali metal

  • cheers man i looked at a periodic table after nd saw it was :P how sad. so it makes cesium hydroxide. and to that kid who talked about caesium being radioactive, the main isotope aint, so id say... esp in that reaction. no it wernt radioactive.

  • Is Caesium radioactive?

  • Yes

  • no but its compound caesium-137 is extremely radioactive and caused a major pollutant after the 1986 chernobly nuclear disaster

  • is the compound an isotope?

  • hahahaa

  • it is! it is on a video the cesium they put in is only about gram

  • omg

  • thats true but i doubt its caesium

  • It is, watch the video this clip was taken from.

  • thats not caesium dude. its probably potassium. caesium is muuuuuuch bigger

  • rubidium?

  • no, theres another video in this "series" that shows rhubidium

  • dude!!! i saw this whole video in my phys. science class!! it was freakin cool

  • thers only like 20g om francium

  • Excuse me? I am from Iraq, not all Iraq people are Muslims, even then thy might not be terrorists. I am an Iraq Christian, so hazzap123, you are a faggot that deserves to be castrated......

    (IF THIS APPEARS TO BE A TEXT COMMENT, IT IS NOT. IT IS A REPLY TO HAZZAP123.)

  • above: AIMED AT HAZZAP123!!!!!!!!!!!!!!

  • Figures someone from Iraq would be here learning about explosive reactions. Typical. I love causing international turmoil :)

  • @ jabrajones:

    A terrorist could do much, much worse with 5 gal of gasoline or just a shotgun.

  • Typical? How often do you observe people learning about explosives?

  • ur not causing turmoil, ur jsut being racist and ignorant

  • Holy cow! It exploded as soon as he dropped it in!!!

  • thats what she said

  • my teachers made this mr bellemy and mr mac mr mac whistles at the end and mr bellemy drops it :D:D its so good

  • William Powell aKa the Jolly Roger ;)

  • @ MathiasVendt:

    William Powell and "the Jolly Roger" are not the same.

    I don't remember any mention of alkali metals in "The Anarchist's Cookbook" which is, BTW, one of the most lame-ass collections of bullshit I have ever wasted $12 on. Drawings of bombs that a junior-high kid would do. Information on guns which you could find in 2 minutes at a gun store. A recipe for LSD in German from "Helvetia Chimca Acta" which you could look up in a library. Bullshit for wankers.

  • I find it hillarious, that you bought the anachist cookbook (since it's free on the internet) for knowledge, and not for the nostalgie.. it's pure facination in the anarchist actions, that made this book.. that is why it's so fun to read :)

  • I bought it before the internet. It was compiled around 1970. Even for that time, it was worthless.

  • The anarchist cookbook on the internet and the published version are actually completely different.

  • whose brilliant idea was it to do that in a GLASS crystallizing dish?

  • This is a destructive procedure. They knew full well that regardless of material they would loose the water bath. So they go with the cheaper option (the amount they want for the right strenght in plastic is crazy)

  • he got it form the anarchist´'s cookbook by the jolly roger

  • i bet it was exothermic

  • i love caesium.

  • Which is why man could never actually collect enough of it for anything but complex lab equipment to observe that reaction.

  • NICE!

  • hly crap ceasium does that imagine francium

  • yeah man, what if you could just put all 60000 atoms of francium in water:D, you'd like, see nothing:O(more of it has never been in one location).

  • Francium is too unstable to do that. Francium literally falls apart after seconds of its creation. Theres not enough time for you to put enough worth of it into water.

  • That was epic!

  • francium has a half life of only a few secounds so ud never get time for it to react with water.

  • Doesn't Francium have a halflife of 22 min? Anyways, only 30 grams of it exist in the crust.

  • Not sure about the half life... but you could never get enough of it. I heard just 10 grams, not 30 grams. You couldn't collect enough to make a boom, even if it wasn't decaying so fast that you'd never get it anywhere useful.

  • uhm...Francium halflife is 21 minutes and change, and its radioactive so they dont let people other than military touch the shit

  • OWN3D

  • Since Francium is really scarce (rare), the Caesium is the king of the reactve metals. I am guessing that francium would cause a huge explosion and explode the glass bowl into a thousand smithereens.

  • Francium is so rare that no one will ever be able to obtain any, Theres only 25-50 grams in the earths crust at one time!!! You could sell it for more, than the amount of enjoyment that you would get for blowing it up!!!

  • Emm..

    Too bad Francium is so reactive it is practically impossible to get 1 gram let along 1 ton. Would be interesting to see though...

  • prolly blow half the room apart if you did get a gram and put it in water

  • dude, they put so little in that its hard to see

  • Send that to IRAQ.... hahah lol experiment gone wild!

  • I DECLARE DEFEAT, you win.

  • Thank for all the viewing, comments and link this as favorited!!

  • how much cesium was that?

  • i think you'll find that you are a twat.

  • just the explosion. no intro. no explanation. nice

  • francium is the most reactive element...it's so reactive until actually no1 has seen the real piece

  • Francium is NOT the most reactive element. Floyrine is.. Radioactivity has nothing with reactivity to do! Cesium is considered the 2. most reactive element. Framcium is not counted as it's not aboundent enough to make any test. just like astentine is not usually mentiont between the halogens.

  • if u quickly added the francium to water after it was made however, it would be possible to roughly see how reactive it is. Besides, loads of people say that it is more reactive, so obviously they have done some tests. This therefore means that you are wrong.

  • I'm sorry... you're wrong... there has never been made any test with it. It's all calculated.

  • Ahh, a spectacular idea.

    But it wouldn't react like that - if you put a gram of Fr223 in one place, it will give out 262,000 Watts of heat from radiation. It would explode by itself before you put it in the water.

  • Actually the reaction of Francium is chemically similar to Cesium, The smoke of Francium Hydroxide will be harmful though. But no tests have been made and this is just a theory.

  • You... didn't actually read my post at all did you?

    If Francium was stable enough to sit there and not explode from the huge amounts of energy it gives off from random Nuclear Fission, then yes, it would probably behave alot like Cesium.

    Put one gram of Francium in one place, never mind whether there's water around, and it will explode in a way that Cesium doesn't.

  • No not exactly. Their is no time to Separate francium from the compound. Scientists can never Isolate the Element.

  • yeah.. this is a good example of cesium reacting with water... do any of you have an idea of how much cesium is used? well... it can't be much since cesium has a weight of only 1,8 grams a cubic centimeter. and you almost cant see the ammount he is using in this video .

  • Really? and where did you see a francium reaction? it is the second rarest element on the planet with only 340 to 550 grams in the crust at any one point, also it has a half life of about 11 minutes before it decays?

  • Francium can be made artificially as well, by bombarding thorium with protons.

  • Yes but it will go in 11 minutes.

  • I gave some to my brother, told him it was a sweet LOL

    He put it in his mouth ROFLMAO

  • Of course you did. Because we all know that any Joe Bloggs can obtain Caesium without any trouble.

    [/sarcasm]

  • ...and you wouldnt be laughing as he was horribly disfigured...

    if you were then you are a sick bastard

    (to MrBronson66)

  • love the low whistle at the end.

    and what does every one mean by claiming they did this?!

  • i saw this in my chemistry lesson lol

  • wooow,ti would be better if the quality was better

  • Lol I did this the other week in class. Was fun :D

  • You got Caesium in class? erm how? Caesium is radioactive anyone who would supply it to a school should be sacked

  • Nah, muppet! 'Course I didn't actually do this in class :P It was an observation of a video, so therefore I did actually do that in class. Mwahaha.

  • Cs-133 is stable.

  • Nah, I think he means that he saw this video in class. I certainly saw something similar with a range of metals reacting with a bowl of water - some fizzing around on top and then... this.

  • caesiums not radioactive (i think) just highly reacitve with hydrogen... however caesium is not allowed in schools by law

  • Yes, it isnt radioactive, just volatile.

  • ... volatile? It's a metal, solid at room temp. It doesn't just sublime into the air.

    Reactive with hydrogen (re: predben's comment)? Um, no, not really. It's highly reactive with WATER, yes, the reaction is very exothermic, explosive and PRODUCES hydrogen, but Caesium doesn't react with hydrogen ordinarily.

    Ce(s) + H2O(l) → CeOH(aq) + H2(g)

  • Yes, it is volatile. IT can change 'form' at a moment's notice.

  • I'm not sure I follow. I'll admit that I made a quick assumption earlier, but looking further into caesium's properties, I see no evidence it should be volatile.

    Caesium's melting point is ~28°C, boiling point >600°C. It has a vapour pressure of 1 Pa at 145°C, 1 kPa at 350°C. I haven't worked with vapour pressure much, but comparing to water's 3.16 kPa at 25°C (which was already low) that seems like almost nothing.

    Could you expand on what you mean by "volatile", and provide references?

  • I believe we are both considering two different forms of the word volatile. I am imagining a definition which states a noun's ability to change form at any given moment. Considering that it reacts so easily with a compound as non-complex as water, you could call it volatile. Really, this disagreement is just a matter of terminology.

    I will give you the fact that it dosent react without something to start the reaction. THAT would be the ideal definition for volatile. Am i understood now?

  • And because Ce Ions are extreme vater solubly you can add lot of them and get nicely corrosive alkaline solution wich can corrosive even glass =) It could be fun in your hands

  • I saw that in my science class today!

  • lol bit too much

  • OMFG